Copilot Cowork is an agentic system built for complex, long-running, multi-tool tasks. Rather than producing a draft or a suggestion the way Copilot Chat does, you define the work and Cowork runs it end-to-end and returns a completed result, not just a draft or a recommendation (Microsoft 365 Blog).
Microsoft positions it as more accurate, secure, and cost-efficient than comparable offerings, for five reasons:
Cloud hostedFiles are not stored locally, security is strongly enforced, and tasks keep running even when the user's laptop is off.
Grounded in Work IQNative Work IQ support grounds every task in the systems the business already runs on, so the work reflects real context.
Enterprise-grade security and complianceCowork operates within the Microsoft 365 trust boundary, with protections that align to the organization's existing policies and controls.
Multi-model by designIt can run whichever models a task needs, so capability scales with the work as more models become available. At general availability it runs on Anthropic models, including Opus 4.8 and Sonnet 4.6, with GPT 5.5 available in Frontier and a Microsoft fine-tuned model, Cowork 1, coming soon.
Lower cost by designAchieved through a runtime that efficiently finds the right information and tools, model choice that matches the right model to each task, and billing that charges only for what is used.
Cowork sits on top of the standard Copilot subscription rather than replacing it. It requires the Microsoft 365 Copilot User Subscription License (USL); users are then billed for Cowork separately on a usage basis, with charges determined by the tasks they run.
The USL itself covers Copilot Chat, Copilot in Word, Excel, PowerPoint, Outlook, and Teams, the Work IQ context engine, a multi-model system offering frontier intelligence, pre-built agents like Researcher and Analyst, and custom agents built with Agent Builder, for a flat monthly fee. Cowork's task execution is metered separately in Copilot Credits.
Example real-world uses (as cited by Microsoft)
An engineering team taught Cowork how to safely edit batch-job spreadsheets and generate dependency flow charts after every change, automating work that previously required careful manual intervention.
One team compared nearly four thousand files across two product versions, work that would have taken weeks.
A sales lead pointed Cowork at a stalled pipeline and got back a ranked list of at-risk opportunities with the exact follow-up that had gone cold on each, collapsing a week of manual review into a single morning.
The same task often works in multiple tools. Choose based on the scope of the work, the context it needs, and whether it should run on demand or proactively.
Human-agent collaboration
From assisting to orchestrating
Copilot
Pattern 01
Author
Doing the work
You create; AI assistsPattern 02
Editor
Shaping the work
AI drafts; you refine
Cowork
Pattern 03
Director
Delegating the work
You specify; AI delivers
Scout
Pattern 04
Orchestrator
Designing the system
You set policies; agents run in parallel
Simpler and fasterMore autonomous
Task or need
Included in M365 Copilot
Consumption charges
When should you choose each one?
Copilot Chat
In the app
Copilot Cowork
Microsoft Scout*
Brainstorm ideas and find information
★ Best
✓Also works
✓Also works
✓Also works
All tools can help. Chat is fastest for open brainstorming and quick lookups.
Draft an email or summarize a conversation
✓Also works
★ Best
✓Also works
✓Also works
Use in-app Copilot on the real Outlook thread. Chat suits quick standalone notes; Scout and Cowork can also do it.
Synthesize a meeting
✓Also works
★ Best
✓Also works
✓Also works
In-app Copilot uses the real Teams meeting. Chat works when given the right meeting; Scout and Cowork can do it but are not needed.
Create or edit one Excel, Word, or PowerPoint file
–Not recommended
★ Best
✓Also works
✓Also works
Use in-app Copilot for one file. Choose Cowork when you need multiple assets at the same time.
Deep research, reporting, and action taking
–Not recommended
–Not recommended
★ Best
–Not recommended
Cowork runs the full research, report, and action flow from end to end.
Daily briefing
★ Best Reactive
✓Also works
✓Also works
★ Best Proactive
Chat gives a quick briefing on demand; Scout proactively delivers one before you ask.
Manage and coordinate my day
–Not recommended
✓Also works
★ Best Reactive
★ Best Proactive
Scout proactively orchestrates your day across inbox and calendar; Cowork runs the process when requested.
Create multiple M365 deliverables in one job
–Not recommended
–Not recommended
★ Best
✓Also works
Cowork builds Word, Excel, and PowerPoint deliverables from your M365 context in one flow.
Create deliverables across multiple systems
–Not recommended
–Not recommended
✓Also works
★ Best
Scout connects complex workflows across Microsoft 365, MCP servers, scripts, GitHub, and internal APIs.
★ Best option✓ Also works– Not recommended Best proactive Best reactive * Microsoft Scout is currently in private preview.
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Chapter 03
Understanding the cost model
Users rely on Cowork for complex, multi-step work across apps that runs autonomously. Copilot Credit usage scales with task complexity and varies based on the mix of four cost buckets.
→Copilot Credits
Example scenario
Prepare for an upcoming customer meeting
Click a cost factor above to explore its role.
For my upcoming customer meeting with Adatum
Analyze my interactions using relevant emails, meeting notes, CRM updates, and support incidents to identify deal status, risks, and competitive threats.
Create a briefing document and client-ready presentation covering differentiation, opportunities, and next steps. Email Moana and Tim a concise summary with recommendations.
Selected factor
Select a factor
Choose Models, Runtime, Context, or Tools above to see where it contributes to this scenario.
Representative scenarios
Light, medium, and heavy tasks
Illustrative planning ranges per task
Scenario
Copilot Cowork example
Illustrative credits per task
Light
Create a weekly status update for the team with priorities and key meetings pulled from the calendar.
70–200 Copilot Credits
Medium
Prepare for a customer meeting using relevant emails, calendar items, CRM data, and recent file context.
400–600 Copilot Credits
Heavy
Analyze six months of exported product usage data, identify patterns, classify prompts, and produce a leadership-ready analysis.
>1,500 Copilot Credits
These figures are rough planning estimates. Actual usage varies based on workflow complexity and usage patterns.
Copilot Cowork, Copilot Studio agents, SharePoint agents, and other Microsoft AI experiences all draw from the same underlying currency: Copilot Credits. Microsoft gives organizations four distinct ways to fund that consumption.
Use Copilot features with no upfront commitment and pay at the end of each month for the credits actually consumed.
How it applies
Pay-as-you-go applies to Microsoft 365 Copilot Chat, SharePoint Agents, and the Microsoft Copilot Retrieval API. Cowork and the Work IQ API use a related but separate flow. Billing is enabled per environment or tenant through a policy linked to an Azure subscription. Usage beyond included or prepaid amounts is billed through Azure meters at month end.
Pay-as-you-go is not purchased as a product. Activate it by adding a billing policy in the Microsoft 365 admin center. An organization can create up to 50 billing policies per tenant and needs an Azure subscription in the same tenant as Microsoft 365; one can be created during setup.
In the Microsoft 365 admin center, go to Copilot > Cost management > Classic Billing & usage > Pay-as-you-go, then connect a billing policy to a specific service.
Make a one-year prepaid commitment to a pool of Copilot Credit Commit Units at a discount from the pay-as-you-go rate.
How it applies
The prepaid pool is usable across Microsoft-eligible products, including Copilot Studio agents, Dynamics 365 first-party agents, and Copilot experiences such as Cowork. Larger commitments unlock larger discounts. A 15,000 CU Tier 2 commitment, for example, can save around 6% compared with standard pay-as-you-go. Pay-as-you-go remains available for overage after the pool is exhausted.
After purchase, create a billing policy associated with the Azure subscription in the Power Platform admin center. This connects the CCCU pool to the environments and services drawing from it.
Use one broader annual commitment across Microsoft Foundry, Copilot Studio, Microsoft Fabric, and GitHub.
How it applies
Eligible service consumption automatically draws down Agent Commit Units from the P3 balance. Microsoft applies billing in a defined order between available capacity sources to help keep spending predictable.
Purchase in the Azure portal under Reservations. The buyer needs an Azure subscription and the owner or reservation purchaser role. Enterprise Agreement subscriptions also require the Reserved Instances policy option to be enabled by an EA administrator. The charge appears as its own invoice line item rather than reducing an existing Azure Prepayment balance.
Estimate expected annual usage across Microsoft Foundry, Copilot Studio, Fabric, and GitHub, then choose the appropriate tier. There is currently no separate Microsoft Learn configuration article distinct from the purchase flow.
Buy fixed monthly blocks of Copilot Credits as a prepaid, tenant-level subscription, with multiple packs available when more capacity is needed.
How it applies
Capacity pack credits are used before pay-as-you-go overage. The shared pool funds services managed in Microsoft 365 and Power Platform, including Cowork, Work IQ API, Copilot Chat, SharePoint agents, and Copilot Studio agents. Capacity allocated or consumed in Power Platform reduces what remains available for Cowork.
Purchase capacity packs in the Microsoft 365 admin center. A Global Administrator or Billing Administrator can buy a pack; a Global Administrator must enable its use afterward.
Create a Copilot credit policy under Copilot > Billing & usage > Pay-as-you-go services. Up to 10 policies can be scoped to a group or the whole tenant and paired with pay-as-you-go for automatic overage. Copilot Studio allocation is managed in Power Platform.
Use Copilot > Cost management in the Microsoft 365 admin center for Cowork and Work IQ API capacity. Use the Power Platform admin center for Copilot Studio allocation and usage detail.
Start with a demand model, then compare the forecast with observed adoption, consumption, value, and cost.
01 / Planning workbook
Copilot Cowork Estimator
Model expected Cowork demand by user group and monthly mix of light, medium, and heavy tasks. The workbook translates those assumptions into estimated Copilot Credits, monthly budget, and average cost per user.
Explore open-source Power BI reports, add-ons, and exporters for measuring Copilot adoption, impact, consumption, and cost in your own tenant. The catalog includes Cowork billing, forecasting, chargeback, ROI, and usage tools.
Explore practical resources, examples, and reusable building blocks for expanding Cowork beyond a single task.
Microsoft · Community gallery
Agent Skills Gallery
Browse community-contributed skills, plugins, and automations for Cowork, Copilot Studio, and Scout. Search by platform or topic, then download the instructions and scripts to add new capabilities to your agent.
Learn what Cowork can do, compare it with Chat and agents, explore real scenarios, improve task prompts, and find ready-to-run prompts and task packs for adoption.
